Which of the following describes a primary purpose of the endangered species act (esa)? i. to identify populations of organisms that are in danger of becoming extinct ii. to preserve the habitat in which a threatened or endangered population lives iii. to introduce species to regions in which they have not historically lived    i only  ii only  iii only  i and ii only  ii and iii only

Option (4)

Explanation:

The Endangered Species Act was a law adopted in the year 1973. It is usually written in short as 'ESA'. The main objective of this act was to determine the number of endangered species (threatened species) that exist in a particular habitat and also to protect and conserve them as well as their habitat.

The endangered species refers to those species which are very limited in number and are soon, going to get wiped out from the earth completely. For example, tigers, rhinoceros, sea turtle and many more.

From the above-given options, the statements, I and II describe the main purpose of the Endangered Species Act.

Thus, the correct answer is option (4).

ek = (m·v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) ·v2/2

ek = (200 + 250) ·2,32/2 = 450·5,29/2 = 1190,25 j